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ROYAL BRIDGE v1.1
Copyright (c) 1998, Ivan Sturlic
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royalbridge.library version 34.31 (31 Oct 1998)
royalbridge.library is an Arexx external function library which acts as
a bridge to any Amiga shared library.
To call the library function royalbridge.library needs to know the library
base, function offset and information about which processor registers to use
for function arguments.
To make coding much easier you can use the Royal Bridge Arexx Preprocessor
which is also included. Arexx preprocessor requires a C compiler which will
be used to access C include files.
From this version it is also possible to call a shared library function in
a very simple way without using preprocessor.
Example: call rbCall('$graphics.library $Text',rp,'$Royal Bridge',12)
When using Arexx preprocessor you write an .app file which is nothing else
but normal Arexx program with some preprocessor commands which will be
replaced by real things in final .rexx file.
For example, to call the exec.library/AllocVec() function you would write:
#call 0 bmap = AllocVec(#{sizeof(struct BitMap)},#{MEMF_CLEAR})
This line would be replaced by preprocessor and would look like:
bmap = rbCall(0 || ' 2ac 1002',40,65536)
CURRENT LIMITATIONS
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- It is not possible to call a library function which uses an a5 register
for its argument
- Won't work with floating point arguments
HISTORY
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- 31 Oct 1998
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Version 1.1 (royalbridge.library 34.31)
- new very simple ways of calling a shared library function
- rbCall() accepts Arexx strings
- auto opening/closing of libraries
- new utility MakeRB
- 26 Apr 1998
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First public release
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